One of the few dramas I've watched from start to finish several times while it's still ongoing. The subtle acting in facial expressions and the emotion is chef's kiss. It doesn't have the usual K-drama tropes that infuriate me. It's emotional subtext of toxic relations and how people deal with it (either be tradition or sense of duty) is really well framed and explored.
I re-watch episodes and notice something different or link the foreshadowing clearly. Highly recommend if you like crying and beg for more. ¯\_(ツ)_/¯